- Arm II: Patients receive adjuvant doxorubicin IV over 45 minutes followed by gemcitabine IV over 2 hours on day 1. Patients also receive filgrastim (G-CSF) subcutaneously (SC) daily on days 3-10. Treatment repeats every 14 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. Beginning 14 days after the completion of doxorubicin and gemcitabine, patients receive paclitaxel IV over 3 hours and cisplatin IV over 20-30 minutes on day 1. Patients also receive G-CSF SC daily on days 3-10 or 4-11. Treatment repeats every 14 days for up to 4 courses in the absence of disease progression or unacceptable toxicity.